S-90265A133 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Precise component alignment enabled by the 20mm shoulder, reducing wear and simplifying assembly in machinery.
• High mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications.
• Secure and efficient installation with a hex socket drive and knurled head, preventing cam-out and allowing high torque application.
• Accurate and reliable threading with Class 5g6g thread fit and M4x0.7mm coarse pitch, ensuring consistent performance and easy assembly.
• Compliance with strict environmental standards including RoHS 3 and REACH, making it safe for various industrial and international markets.
• Durable and wear-resistant design with a standard shoulder fit and precise tolerances, providing stable performance in high-stress applications.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical alignment and fastening challenges in industrial machinery, automation systems, and precision equipment. The 20mm shoulder length acts as a precise pivot or spacer, eliminating the need for additional bushings and reducing assembly time and component wear. Manufactured from 18-8 stainless steel, it provides excellent resistance to corrosion and oxidation, ensuring longevity in demanding environments. The hex socket drive combined with a knurled head texture offers superior grip and torque transmission, preventing stripping during installation. With a Class 5g6g thread fit and coarse 0.7mm pitch, it ensures quick, secure fastening in high-vibration applications, making it an ideal choice for robotics, conveyor systems, and electronic enclosures where precision and durability are paramount.

Specification Summary & Compliance

This shoulder screw features an M4 x 0.7mm coarse thread with a Class 5g6g thread fit per metric standards, ensuring precise engagement. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, providing high dimensional accuracy for reliable performance. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and global industrial applications.